/Engine/Plugins/Interchange/Runtime/Source/Nodes/Public/InterchangeShaderGraphNode.h
A function call shader node has a named set of inputs and outputs which corresponds to the inputs and outputs of the shader function it instances.
[UCLASS](Programming/UnrealArchitecture/Reference/Classes#classdeclaration)(BlueprintType, Experimental) class UInterchangeFunctionCallShaderNode : public [UInterchangeShaderNode](API\Plugins\InterchangeNodes\UInterchangeShaderNode)